Input Timer True Figure 2 False Rung condition- Timed period- Timed duration 7. For Figure 2; The timer would be classified as a(n): a) on-delay timer. b) off-delay timer. c) normally open timer. d) normally closed timer. 8. For Figure 2; The timing commences when: a) the input instruction is true. b) the input instruction is false. c) power is applied. d) power is removed. 9. The output of a PLC counter is energized when the: a) accumulated count equals the preset count. b) preset count is greater than the accumulated count. c) counter input rung is true. d) counter input rung is false. 10. Which of the following is not usually associated with a PLC counter instruction? a) Address b) Preset value c) Time base d) Accumulated value

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Input
Timer
True
False
Figure 2
Rung condition
Timed period
Timed duration
7. For Figure 2; The timer would be classified as a(n):
a) on-delay timer.
b) off-delay timer.
c) normally open timer.
d) normally closed timer.
8. For Figure 2; The timing commences when:
a) the input instruction is true.
b) the input instruction is false.
c) power is applied.
d) power is removed.
9. The output of a PLC counter is energized when the:
a) accumulated count equals the preset count.
b) preset count is greater than the accumulated count.
c) counter input rung is true.
d) counter input rung is false.
10. Which of the following is not usually associated with a PLC counter instruction?
a) Address
b) Preset value
c) Time base
d) Accumulated value
11. A PLC up-counter (CTU) counter counts:
a) scan transitions.
b) true-to-false transitions.
c) false-to-true transitions.
d) both b and c
12. When the accumulated count exceeds the preset count, the:
a) accumulated value is set to zero.
b) preset is set to zero.
c) reset changes state.
d) counter done bit is true.
13. The counter RES instruction:
a) is used to reset the counter.
b) is given the same reference address as the counter instruction.
c) decrements the count when actuated.
d) both a and b
14. Normally counters are retentive. This means that if your accumulated count is up to 300 and power
to your system is lost, when power is restored, the accumulated count will be:
a) 000.
b) 250.
c) 300.
d) 999.
Transcribed Image Text:Input Timer True False Figure 2 Rung condition Timed period Timed duration 7. For Figure 2; The timer would be classified as a(n): a) on-delay timer. b) off-delay timer. c) normally open timer. d) normally closed timer. 8. For Figure 2; The timing commences when: a) the input instruction is true. b) the input instruction is false. c) power is applied. d) power is removed. 9. The output of a PLC counter is energized when the: a) accumulated count equals the preset count. b) preset count is greater than the accumulated count. c) counter input rung is true. d) counter input rung is false. 10. Which of the following is not usually associated with a PLC counter instruction? a) Address b) Preset value c) Time base d) Accumulated value 11. A PLC up-counter (CTU) counter counts: a) scan transitions. b) true-to-false transitions. c) false-to-true transitions. d) both b and c 12. When the accumulated count exceeds the preset count, the: a) accumulated value is set to zero. b) preset is set to zero. c) reset changes state. d) counter done bit is true. 13. The counter RES instruction: a) is used to reset the counter. b) is given the same reference address as the counter instruction. c) decrements the count when actuated. d) both a and b 14. Normally counters are retentive. This means that if your accumulated count is up to 300 and power to your system is lost, when power is restored, the accumulated count will be: a) 000. b) 250. c) 300. d) 999.
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